CN108128350A - A kind of steering suspension oil cylinder and its suspension steering system - Google Patents
A kind of steering suspension oil cylinder and its suspension steering system Download PDFInfo
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- CN108128350A CN108128350A CN201711381933.XA CN201711381933A CN108128350A CN 108128350 A CN108128350 A CN 108128350A CN 201711381933 A CN201711381933 A CN 201711381933A CN 108128350 A CN108128350 A CN 108128350A
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- suspension
- piston rod
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- 239000000725 suspension Substances 0.000 title claims abstract description 145
- 230000000694 effects Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000013016 damping Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 40
- 239000012530 fluid Substances 0.000 claims description 19
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 abstract description 3
- 241000826860 Trapezium Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000009298 Trigla lyra Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/02—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally
- B60G13/06—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type
- B60G13/08—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
Abstract
The invention discloses a kind of steering suspension oil cylinders, and position locked cylinder, suspension oil cylinder are integrated in integrated steering cylinder, steering；It is oil-filled to turn-around chamber one or turn-around chamber two, drive rack is to the right or to left movement, it is rotated by rack and pinion mechanism band moving gear, gear is fixed with cylinder bottom three, drive the driving member rotation being connect with cylinder bottom three, connecting seat is driven to rotate by spline structure again, connecting seat is connect with knuckle, and then realizes Vehicular turn function；Into steering, position latch well one and position latch well two in steering are oil-filled simultaneously, and piston three, piston four is pushed to move, finally piston three, piston four are pushed at locking seat；By the cooperation of nut, locking seat with rack is fixed on latched position, and then realize the middle position lock function in vehicle travel process；It is oil-filled to suspension acting chamber one or suspension acting chamber two, push connecting seat to the right, to left movement, and then realize lifting, damping effect that suspension oil cylinder plays.
Description
Technical field
The present invention relates to a kind of steering suspension oil cylinder and its suspension steering systems, and in particular to one kind, which has, to be turned to, turns to
The suspension oil cylinder of middle position lock function, for engineering machinery suspension system（Independent suspension/rigid axle suspension）, steering.
Background technology
Steering boost system is generally made of parts such as steering cylinder, knuckle arm, steering linkage, steering controllers.
Knuckle arm and steering linkage composition steering geometry, steering cylinder one end is mounted in vehicle bridge fixed seat, one end is mounted on
On steering cylinder, steering cylinder movement drives steering linkage movement, plays power steering.Hydraulic tube can be arranged on steering cylinder
Road and control piper.Arrange that steering cylinder, knuckle arm, steering linkage etc. occupy the big quantity space of vehicle chassis.
When vehicle need keep straight-line travelling, not sideslip, need setting turn in position locked cylinder, so as to fulfill steering system
Position lock function in system.
In order to realize the vibration attenuation function in the steering of vehicle and driving process, following technical scheme is mainly taken at present
Combination.1st, independent suspension technical solution independent suspension structure：Suspension oil cylinder one end is fixed on by mechanical device on vehicle frame, one end
It is connect with knuckle, a shear force and the torque between wheel and vehicle frame is acted on, and mitigate by the flexible transmission of suspension oil cylinder
Road surface is transmitted to the shock loading of vehicle frame, the vibration of attenuation thus caused bearing system, ensures the smooth-going characteristic of the traveling of automobile；
Ensure that wheel has ideal kinetic characteristic in Uneven road and load change, ensure the control stability of automobile, obtain automobile
Must run at high speed ability.
2nd, steering mechanism when independent suspension steering technique scheme disconnects：Steering cylinder one end is fixed on vehicle frame, the other end
The steering trapezium formed with pitman arm assembly and steering linkage, steering trapezium are total in pitman arm by steering cylinder pulling force effect
Into so as to which knuckle rotation be driven to realize turning function.Wherein steering cylinder realizes the power steering of vehicle.
By the combination of both the above technical solution, realize independent suspension vehicle steering and driving process in vibration
Attenuation function.
There are following defects for the prior art：（1）Element is more, complicated：In order to realize chassis steering boost system with hanging
Frame system function, chassis contain steering cylinder, steering cylinder, middle position locking oil cylinder, track rod, knuckle arm,
Multiple parts such as steering controller, assembly time is longer, trouble point is more.
（2）Larger chassis space is occupied, vehicle frame stability, rigidity are restricted：These parts are reasonably arranged
On chassis, need to occupy big quantity space, arrangement is limited, and influences vehicle frame stability and rigidity.System chassis space hold is big, vehicle
Frame stability, rigidity are restricted.
（3）Weight weight：Due to more than system element and arrangement load, system weight are difficult to reduce, influencing vehicle bearing capacity,
Vehicle oil consumption is caused to increase, increases vehicle use cost.
（4）It is of high cost：Since system element is more, assembling point is more, causes system acquisition, production and maintenance and repair cost difficult
To reduce.
Invention content
Purpose：In order to overcome the deficiencies in the prior art, the present invention provides a kind of steering suspension oil cylinder.
Technical solution：In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of steering suspension oil cylinder, it is characterised in that：Position locked cylinder, suspension oil cylinder are integrated in integrated steering cylinder, steering；
（1）Steering cylinder function：Oil-filled to turn-around chamber one or turn-around chamber two, drive rack passes through gear to the right or to left movement
Rackwork band moving gear rotates, and gear is fixed with cylinder bottom three, drives the driving member rotation being connect with cylinder bottom three, and driving member passes through
Spline structure drives connecting seat rotation, and connecting seat is connect with knuckle, and then with driving wheel side assembly to the right or to anticlockwise, and then
Realize Vehicular turn function；
（2）Locked cylinder function in position in steering：Into steering, position latch well one and position latch well two in steering are oil-filled simultaneously, push
Piston three, piston four move, and the fluid of cavity volume is flowed out from hydraulic fluid port between piston three, piston four, finally pushes away piston three, piston four
To locking seat；Piston three and piston four are fixed on latched position, Jin Ershi by the cooperation of nut and locking seat and by rack
Middle position lock function in existing vehicle travel process；
（3）Suspension oil cylinder function：It is oil-filled to suspension acting chamber one or suspension acting chamber two, push connecting seat to the right, to left movement,
And then realize suspension oil cylinder play lifting, damping effect.
Scheme one：The steering suspension oil cylinder, including cylinder bottom one, turn-around chamber one, piston one, cylinder barrel one, rack, piston
2nd, position latch well one, piston three, locking seat, nut, piston four, cylinder barrel in turn-around chamber two, guide sleeve one, cylinder barrel two, steering
3rd, position latch well two, cylinder bottom two, gear, sealing ring two, cylinder bottom three, outer sleeve, guide sleeve three, cylinder barrel four, spline knot in turning to
Structure, suspension acting chamber one, piston rod one, logical wick pipe one, logical wick pipe two, guide sleeve two, piston five, sealing ring three, suspension
Acting chamber two, connecting seat；
Piston one, piston two, guide sleeve, piston three, piston four are successively set in cylinder barrel one, are sealed between guide sleeve and cylinder barrel
It is fixedly connected；Turn-around chamber one is formed between piston one and cylinder bottom one, turn-around chamber two is formed between piston two and guide sleeve；It is living
Position latch well one in steering is formed between plug three and guide sleeve, position latch well in steering is formed between piston four and cylinder bottom two
Two；Locking seat is provided between piston three and piston four；Rack both ends are fixedly connected respectively with piston one, piston two, piston rod
One end is fixedly connected with piston two, and the piston rod other end is provided with the nut to match with locking seat, guide sleeve one and piston three
It is arranged on the piston rod；Wheel and rack is meshed, and moving left and right band moving gear by rack rotates, and gear is solid with cylinder bottom three
It is fixed；
Outer sleeve one end is fixedly connected on cylinder bottom three, and one one end of piston rod is fixed on cylinder bottom three, and four one end of cylinder barrel is fixed on
On connecting seat, cylinder barrel four is set in outer sleeve, and piston rod one is arranged in cylinder barrel four, and the other end of cylinder barrel four passes through guide sleeve
Three are tightly connected with piston rod one, are provided with spline structure and guide sleeve two between outer sleeve and cylinder barrel four, piston rod one from
By being sealed between end setting piston five and cylinder barrel four so that formed between the free end of piston rod one, cylinder barrel four, connecting seat
Suspension acting chamber two forms the suspension acting chamber one of annular by piston five and guide sleeve three between piston rod one and cylinder barrel four,
Logical wick pipe one connects three hydraulic fluid port of cylinder bottom and suspension acting chamber two, leads to wick pipe two and connects three hydraulic fluid port of cylinder bottom and suspension acting chamber
One.
Further, sealing ring three is provided between piston five and cylinder barrel four to be sealed.
Scheme two：The steering suspension oil cylinder, it is characterised in that：Including cylinder bottom one, turn-around chamber one, piston one, cylinder barrel
First, rack, piston two, turn-around chamber two, guide sleeve one, cylinder barrel two, turn in position latch well one, piston three, locking seat, nut,
Position latch well two, cylinder bottom two, gear, sealing ring two, cylinder bottom three, suspension acting chamber one, housing in piston four, cylinder barrel three, steering
Cylinder, piston five, guide sleeve two, cylinder barrel four, logical wick pipe one, piston rod two, piston rod one, suspension acting chamber two, guide sleeve three,
Spline structure, guide sleeve four, sealing element three, connecting seat；
Piston one, piston two, guide sleeve, piston three, piston four are successively set in cylinder barrel one, are sealed between guide sleeve and cylinder barrel
It is fixedly connected；Turn-around chamber one is formed between piston one and cylinder bottom one, turn-around chamber two is formed between piston two and guide sleeve；It is living
Position latch well one in steering is formed between plug three and guide sleeve, position latch well in steering is formed between piston four and cylinder bottom two
Two；Locking seat is provided between piston three and piston four；Rack both ends are fixedly connected respectively with piston one, piston two, piston rod
One end is fixedly connected with piston two, and the piston rod other end is provided with the nut to match with locking seat, guide sleeve one and piston three
It is arranged on the piston rod；Wheel and rack is meshed, and moving left and right band moving gear by rack rotates, and gear is solid with cylinder bottom three
It is fixed；
Outer sleeve one end is fixedly connected on cylinder bottom three, and one one end of piston rod is fixed on cylinder bottom three, cylinder barrel four, piston rod 21
End is fixed on connecting seat, and guide sleeve four is fixedly connected with the free end of piston rod one, the free end of piston five and piston rod two
It is fixedly connected；
Cylinder barrel four is set in outer sleeve, and piston rod one is arranged in cylinder barrel four, and piston rod two is arranged in piston rod one, piston
The free end of bar two is tightly connected by piston five and piston rod one, and the guide sleeve four of one free end of piston rod is set in piston rod
Outside two, the suspension acting chamber one of annular, outer sleeve are formed between piston rod one and piston rod two by piston five and guide sleeve four
Guide sleeve three between cylinder barrel four is set, spline structure and guide sleeve two are set between piston rod one and cylinder barrel four so that piston
Suspension acting chamber two is formed between the free end of bar two, piston rod one, cylinder bottom three, leads to wick pipe one and connects three hydraulic fluid port of cylinder bottom and outstanding
Frame acting chamber two opens up channel connection hydraulic fluid port and suspension acting chamber one in cylinder bottom three.
Further, sealing element three is set to be sealed between guide sleeve four and piston rod two.
Preferably, the steering suspension oil cylinder, further includes sealing element one, nut one and baffle ring, the piston
It is fixedly connected between boom end and piston two by nut one and baffle ring；Piston one, piston two, piston three, piston four lead to respectively
It crosses between sealing element one and inner wall of cylinder and seals.
Preferably, the steering suspension oil cylinder, it is characterised in that：Further include housing, bearing, end cap and sealing
Circle two, the gear are installed in the housing by bearing, and housing both ends are sealed by end cap and sealing ring two.
The present invention also provides a kind of suspension steering systems, including above-mentioned steering suspension oil cylinder, further include wheel side assembly, vehicle
Frame, knuckle, semiaxis, main reducing gear；It turns to the connection of suspension oil cylinder to be mounted on vehicle frame, knuckle one end is with turning to suspension oil cylinder
Connection, the other end are connect with wheel side assembly；Take turns side assembly, knuckle, the suspension system for turning to suspension oil cylinder, vehicle frame composition wheel
System, play chassis independently lift, attenuation by absorption effect of vibration；Main reducing gear is connect with vehicle frame, and semiaxis one end connects with wheel side assembly
Connect, the other end with and main reducing gear connect；Engine power is transferred to wheel side assembly by semiaxis and rotated by main reducing gear, so as to
Drive vehicle traveling；The rack-and-pinion oil cylinder rotation in suspension oil cylinder is turned to, the steering of knuckle is driven to realize the steering of vehicle bridge.
It is self suspension steering system at this time.
Further, the steering suspension oil cylinder can be fixed on by connecting seat or bolt on vehicle frame.
Further, the suspension steering system, it is characterised in that：Steering linkage is further included, the steering linkage
Both ends are connected to by knuckle arm turn on suspension oil cylinder respectively, are at this time band steering linkage type suspension steering system.
Advantageous effect：A kind of steering suspension oil cylinder provided by the invention, has the following advantages：With position in turning to, turning to
The suspension oil cylinder of lock function, for engineering machinery suspension system（Independent suspension/rigid axle suspension）, steering, realize outstanding
Position locked cylinder function in frame system suspension oil cylinder, steering steering cylinder, steering mainly solves existing suspension system, turns
To system element is more, arrangement is complicated, be affected by arrangement space, weight weight, it is of high cost the problems such as.
Description of the drawings
Fig. 1 and Fig. 2 is the structure diagram of the embodiment of the present invention 1；
Fig. 3 and Fig. 4 is the structure diagram of the embodiment of the present invention 2；
Fig. 5 is band steering linkage type suspension steering system structure chart；
Fig. 6 is self suspension steering system structure chart；
In Fig. 1, Fig. 2：One 1-1 of cylinder bottom, one 1-2 of turn-around chamber, one 1-3 of piston, one 1-4 of sealing element, cylinder barrel one 1-5, rack 1-6,
Piston two 1-7, baffle ring 1-8, one 1-9 of nut, two 1-10 of turn-around chamber, one 1-11 of guide sleeve, two 1-12 of cylinder barrel, position locks in steering
One 1-13 of chamber, piston three 1-14, locking seat 1-15, nut 1-16, four 1-17 of piston, three 1-18 of cylinder barrel, position latch well in steering
Two 1-19, cylinder bottom two 1-20, housing 1-21, gear 1-22, sealing ring two 1-23, end cap 1-24, bearing 1-25, three 1- of cylinder bottom
26, outer sleeve 1-27, three 1-28 of guide sleeve, cylinder barrel four 1-29, spline structure 1-30, one 1-31 of suspension acting chamber, piston rod one
1-32, logical one 1-33 of wick pipe, logical wick pipe two 1-34, two 1-35 of guide sleeve, five 1-36 of piston, three 1-37 of sealing ring, suspension
Acting chamber two 1-38, connecting seat 1-39.
In Fig. 3, Fig. 4：One 2-1 of cylinder bottom, one 2-2 of turn-around chamber, one 2-3 of piston, one 2-4 of sealing element, one 2-5 of cylinder barrel, rack
2-6, piston two 2-7, baffle ring 2-8, one 2-9 of nut, two 2-10 of turn-around chamber, one 2-11 of guide sleeve, two 2-12 of cylinder barrel, position in steering
One 2-13 of latch well, piston three 2-14, locking seat 2-15, nut 2-16, four 2-17 of piston, three 2-18 of cylinder barrel, position is locked in steering
Determine two 2-19 of chamber, cylinder bottom two 2-20, housing 2-21, gear 2-22, sealing ring two 2-23, end cap 2-24, bearing 2-25, cylinder bottom three
2-26, suspension acting chamber one 2-27, outer sleeve 2-28, five 2-29 of piston, two 2-30 of guide sleeve, four 2-31 of cylinder barrel lead to wick pipe
One 2-32, two 2-33 of piston rod, one 2-34 of piston rod, two 2-35 of suspension acting chamber, guide sleeve three 2-36, spline structure 2-37,
Four 2-38 of guide sleeve, sealing element three 2-39, connecting seat 2-40；
In Fig. 5, Fig. 6：Side assembly 1, knuckle arm 2 are taken turns, vehicle frame 3 turns to suspension oil cylinder 4, knuckle 5, semiaxis 6, main reducing gear
7, steering linkage 8.
Specific embodiment
The present invention is further described with reference to specific embodiment.
Embodiment 1
As depicted in figs. 1 and 2, a kind of steering suspension oil cylinder, is integrated with position locked cylinder, suspension oil cylinder in steering cylinder, steering
Function, integrated level is high.It is broadly divided into two parts：Position locked cylinder part in suspension oil cylinder part, steering cylinder and steering.
Specifically include one 1-1 of cylinder bottom, one 1-2 of turn-around chamber, one 1-3 of piston, one 1-4 of sealing element, cylinder barrel one 1-5, rack 1-
6, piston two 1-7, baffle ring 1-8, one 1-9 of nut, two 1-10 of turn-around chamber, one 1-11 of guide sleeve, two 1-12 of cylinder barrel, position is locked in steering
Determine one 1-13 of chamber, piston three 1-14, locking seat 1-15, nut 1-16, four 1-17 of piston, three 1-18 of cylinder barrel, position locks in steering
Two 1-19 of chamber, cylinder bottom two 1-20, housing 1-21, gear 1-22, sealing ring two 1-23, end cap 1-24, bearing 1-25, three 1- of cylinder bottom
26, outer sleeve 1-27, three 1-28 of guide sleeve, cylinder barrel four 1-29, spline structure 1-30, one 1-31 of suspension acting chamber, piston rod one
1-32, logical one 1-33 of wick pipe, logical wick pipe two 1-34, two 1-35 of guide sleeve, five 1-36 of piston, three 1-37 of sealing ring, suspension
Acting chamber two 1-38, connecting seat 1-39；
One 1-3 of piston, two 1-7 of piston, guide sleeve 1-11, three 1-14 of piston, four 1-17 of piston are successively set on one 1-5 of cylinder barrel
In, one 1-3 of piston, two 1-7 of piston, three 1-14 of piston, four 1-17 of piston are respectively by between one 1-4 of sealing element and inner wall of cylinder
Sealing；It is sealedly and fixedly connected between guide sleeve 1-11 and cylinder barrel；Turn-around chamber one is formed between one 1-1 of one 1-3 of piston and cylinder bottom
1-2 is formed with two 1-10 of turn-around chamber between piston two 1-7 and guide sleeve 1-11；Shape between piston three 1-14 and guide sleeve 1-11
Into there is latch well one 1-13 in position in steering, latch well two 1- in position in steering is formed between two 1-20 of four 1-17 of piston and cylinder bottom
19；Locking seat 1-15 is provided between four 1-17 of three 1-14 of piston and piston；
Rack 1-6 both ends are fixedly connected respectively with one 1-3 of piston, two 1-7 of piston, are led between two 1-7 of piston rod one end and piston
One 1-9 of nut to be crossed to be fixedly connected with baffle ring 1-8, the piston rod other end is provided with the nut 1-16 to match with locking seat 1-15,
One 1-11 of guide sleeve and three 1-14 of piston are arranged on the piston rod；Gear 1-22 is meshed with rack 1-6, passes through a rack 1-6 left sides
The 1-22 rotations of band moving gear are moved right, gear 1-22 is fixed with three 1-26 of cylinder bottom；
Further, gear 1-22 is mounted on by bearing 1-25 in housing 1-21, housing 1-21 both ends by end cap 1-24 and
Two 1-23 of sealing ring is sealed.
Outer sleeve 1-27 one end is fixedly connected on three 1-26 of cylinder bottom, and one 1-32 one end of piston rod is fixed on three 1-26 of cylinder bottom
On, four 1-29 one end of cylinder barrel is fixed on connecting seat 1-39, and four 1-29 of cylinder barrel is set in outer sleeve 1-27, one 1-32 of piston rod
It being arranged in four 1-29 of cylinder barrel, the other end of four 1-29 of cylinder barrel is tightly connected by three 1-28 of guide sleeve and one 1-32 of piston rod,
Two 1-35 of spline structure 1-30 and guide sleeve, the free end of one 1-32 of piston rod are set between four 1-29 of outer sleeve 1-27 and cylinder barrel
Three 1-37 of five 1-36 of piston and sealing ring is set between four 1-29 of cylinder barrel so that the free end of one 1-32 of piston rod, cylinder barrel four
It is formed between 1-29, connecting seat 1-39 between suspension acting chamber two 1-38, four 1-29 of one 1-32 of piston rod and cylinder barrel and forms annular
One 1-31 of suspension acting chamber, lead to wick pipe one 1-33 connection cylinder bottom three 1-26 hydraulic fluid ports G and two 1-38 of suspension acting chamber, lead to wick
Two 1-34 of pipe connection cylinder bottoms three 1-26 hydraulic fluid ports F and one 1-31 of suspension acting chamber.
It turns to suspension oil cylinder and realizes that function is described as follows：
（1）Steering cylinder function：Oil-filled to turn-around chamber one 1-2 or two 1-10 of turn-around chamber, drive rack 1-6 is transported to the right or to the left
Dynamic, by rack and pinion mechanism band moving gear 1-22 rotations, gear 1-22 is fixed with three 1-26 of cylinder bottom, drives outer sleeve 1-27 rotations
Turn, outer sleeve 1-27 drives connecting seat to rotate by spline structure 1-37, and connecting seat 1-39 is connect with knuckle 5, and then drives
Side assembly 1 is taken turns to the right or to anticlockwise, and then realizes Vehicular turn function.
（2）Locked cylinder function in position in steering：One 1-13 of position latch well and latch well two 1-19 in position in steering into steering
It is oil-filled simultaneously, piston three, piston four is pushed to move, the fluid of cavity volume is from E mouthfuls of outflows between two-piston, finally by three 1- of piston
14th, four 1-17 of piston is pushed at locking seat 1-15.Two-piston is by nut 1-16 by rack centerlock（Locking seat
It puts）, and then realize the middle position lock function in vehicle travel process.
（3）Suspension oil cylinder function：It is oil-filled to suspension acting chamber one 1-31 or two 1-38 of suspension acting chamber, push connecting seat 1-
39 to the right, to left movement, and then the effects that lifting, vibration damping that suspension oil cylinder plays is realized.
Embodiment 2
As shown in Figure 3 and Figure 4, a kind of steering suspension oil cylinder, including one 2-1 of cylinder bottom, one 2-2 of turn-around chamber, one 2-3 of piston, sealing
One 2-4 of part, cylinder barrel one 2-5, rack 2-6, piston two 2-7, baffle ring 2-8, one 2-9 of nut, two 2-10 of turn-around chamber, one 2- of guide sleeve
11, two 2-12 of cylinder barrel, latch well one 2-13 in position in steering, piston three 2-14, locking seat 2-15, nut 2-16, four 2-17 of piston,
Three 2-18 of cylinder barrel, latch well two 2-19 in position in steering, cylinder bottom two 2-20, housing 2-21, gear 2-22, two 2-23 of sealing ring, end
Cover 2-24, bearing 2-25, three 2-26 of cylinder bottom, suspension acting chamber one 2-27, outer sleeve 2-28, five 2-29 of piston, two 2- of guide sleeve
30, four 2-31 of cylinder barrel lead to wick pipe one 2-32, two 2-33 of piston rod, one 2-34 of piston rod, two 2-35 of suspension acting chamber, are oriented to
Cover three 2-36, spline structure 2-37, four 2-38 of guide sleeve, sealing element three 2-39, connecting seat 2-40.
One 2-3 of piston, two 2-7 of piston, guide sleeve 2-11, three 2-14 of piston, four 2-17 of piston are successively set on cylinder barrel one
In 2-5, one 2-3 of piston, two 2-7 of piston, three 2-14 of piston, four 2-17 of piston pass through one 2-4 of sealing element and inner wall of cylinder respectively
Between seal；It is sealedly and fixedly connected between guide sleeve 2-11 and cylinder barrel；Steering is formed between one 2-1 of one 2-3 of piston and cylinder bottom
One 2-2 of chamber is formed with two 2-10 of turn-around chamber between piston two 2-7 and guide sleeve 2-11；Three 2-14 of piston and guide sleeve 2-11 it
Between be formed with latch well one 2-13 in position in steering, position latch well two in steering is formed between two 2-20 of four 2-17 of piston and cylinder bottom
2-19；Locking seat 2-15 is provided between four 2-17 of three 2-14 of piston and piston；
Rack 2-6 both ends are fixedly connected respectively with one 2-3 of piston, two 2-7 of piston, are led between two 2-7 of piston rod one end and piston
One 2-9 of nut to be crossed to be fixedly connected with baffle ring 2-8, the piston rod other end is provided with the nut 2-16 to match with locking seat 2-15,
One 2-11 of guide sleeve and three 2-14 of piston are arranged on the piston rod；Gear 2-22 is meshed with rack 2-6, passes through a rack 2-6 left sides
The 2-22 rotations of band moving gear are moved right, gear 2-22 is fixed with three 2-26 of cylinder bottom；
Further, gear 2-22 is mounted on by bearing 2-25 in housing 2-21, housing 2-21 both ends by end cap 2-24 and
Two 2-23 of sealing ring is sealed.
Outer sleeve 2-28 one end is fixedly connected on three 2-26 of cylinder bottom, and one 2-34 one end of piston rod is fixed on three 2-26 of cylinder bottom
On, four 2-31 of cylinder barrel, two 2-33 one end of piston rod are fixed on connecting seat 1-39, five 2-29 of piston and two 2-33 ends of piston rod
It is fixedly connected；
Four 2-31 of cylinder barrel is set in outer sleeve 1-27, and one 2-34 of piston rod is arranged in four 2-31 of cylinder barrel, two 2-33 of piston rod
It is arranged in one 2-34 of piston rod, the other end of two 2-33 of piston rod is connected by five 2-29 of piston and one 2-34 of piston rod sealings
It connects, guide sleeve four and sealing ring three, one 2-34 of piston rod is set between two 2-33 of free end and piston rod of one 2-34 of piston rod
One 2-27 of suspension acting chamber of annular is formed between two 2-33 of piston rod,
Guide sleeve three between four 2-31 of outer sleeve 1-27 and cylinder barrel is set, flower is set between four 2-31 of one 2-34 of piston rod and cylinder barrel
Bond structure 1-30 and guide sleeve two so that formed between the free end of two 2-33 of piston rod, one 2-34 of piston rod, three 2-26 of cylinder bottom
Two 2-35 of suspension acting chamber leads to wick pipe one 2-32 connection cylinder bottoms three 2-26 hydraulic fluid ports G and two 2-35 of suspension acting chamber, three 2- of cylinder bottom
26 open up one 2-27 of channel connection hydraulic fluid port F and suspension acting chamber.
It turns to suspension oil cylinder and realizes that function is described as follows：
（1）Steering cylinder function：Oil-filled to turn-around chamber one or turn-around chamber two, drive rack passes through gear to the right or to left movement
Rackwork band moving gear rotates, and gear is fixed with cylinder bottom three, drives one 2-34 of piston rod rotations, and one 2-34 of piston rod passes through flower
Bond structure drives connecting seat rotation, and connecting seat connect with knuckle, and then with driving wheel side assembly to the right or to anticlockwise, Jin Ershi
Existing Vehicular turn function.
（2）Locked cylinder function in position in steering：Into steering, position latch well one and position latch well two in steering are oil-filled simultaneously,
Piston three, piston four is pushed to move, the fluid of cavity volume is flowed out from hydraulic fluid port E between two-piston, is finally pushed into piston three, piston four
At locking seat.Two-piston is by nut by rack centerlock（Locking seat position）, and then realize vehicle travel process
In steering in position lock function.
（3）Suspension oil cylinder function：It is oil-filled to suspension acting chamber one or suspension acting chamber two, push connecting seat to the right, to the left
Movement, so realize suspension oil cylinder play lifting, vibration damping the effects that.
Embodiment 3
It is proposed by the present invention as shown in Figure 5 based on the band steering linkage type suspension steering system structure for turning to suspension oil cylinder.It turns to
Section 5 is connect with turning to suspension oil cylinder 4 and wheel side assembly 1.It takes turns side assembly 1, knuckle 5, turn to suspension oil cylinder 4, the composition vehicle of vehicle frame 3
The suspension system of wheel plays the effects that chassis independently lifts, attenuation by absorption is vibrated.Main reducing gear 7 is connect with vehicle frame 3, semiaxis 6 with
Wheel side assembly 1 and main reducing gear 7 connect.Engine power is transferred to wheel side assembly 1 by semiaxis 6 and rotated by main reducing gear 7, from
And vehicle is driven to travel.
It turns to suspension oil cylinder 4 to be fixed on vehicle frame 3 by connecting seat or bolt, steering linkage 8 is fixed by knuckle arm 2
On suspension oil cylinder is turned to, steering linkage 8 is arranged in vehicle frame side, turns to the rack-and-pinion oil cylinder rotation in suspension oil cylinder, real
The steering of existing vehicle bridge, steering linkage 8 ensure the steering position relationship of left and right wheels.
Embodiment 4
It is proposed by the present invention to be drawn based on the self suspension steering system structure for turning to suspension oil cylinder as shown in fig. 6, being turned to band
Rod-type suspension steering system structure is compared, and has lacked steering linkage, and structure is further simplified.
Knuckle 5 is connect with turning to suspension oil cylinder 4 and wheel side assembly 1.It takes turns side assembly 1, knuckle 5, turn to suspension oil cylinder
4th, vehicle frame 3 forms the suspension system of wheel, plays the effects that chassis independently lifts, attenuation by absorption is vibrated.Main reducing gear 7 and vehicle frame
3 connections, semiaxis 6 are connect with wheel side assembly 1 and main reducing gear 7.Engine power is transferred to wheel by main reducing gear 7 by semiaxis 6
Side assembly 1 rotates, so as to which vehicle be driven to travel.
It turns to suspension oil cylinder 4 to be fixed on vehicle frame 3 by connecting seat or bolt, turns to the rack-and-pinion oil in suspension oil cylinder
Cylinder rotates, and the steering of knuckle 5 is driven to realize the steering of vehicle bridge.The system can realize that vehicle bridge not individually control by homonymy wheel steering
System.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of steering suspension oil cylinder, it is characterised in that：Position locked cylinder, suspension oil cylinder are one in integrated steering cylinder, steering
Body；
（1）Steering cylinder function：Oil-filled to turn-around chamber one or turn-around chamber two, drive rack passes through gear to the right or to left movement
Rackwork band moving gear rotates, and gear is fixed with cylinder bottom three, drives the driving member rotation being connect with cylinder bottom three, and driving member passes through
Spline structure drives connecting seat rotation, and connecting seat is connect with knuckle, and then with driving wheel side assembly to the right or to anticlockwise, and then
Realize Vehicular turn function；
（2）Locked cylinder function in position in steering：Into steering, position latch well one and position latch well two in steering are oil-filled simultaneously, push
Piston three, piston four move, and the fluid of cavity volume is flowed out from hydraulic fluid port between piston three, piston four, finally pushes away piston three, piston four
To locking seat；Piston three and piston four are fixed on latched position, Jin Ershi by the cooperation of nut and locking seat and by rack
Middle position lock function in existing vehicle travel process；
（3）Suspension oil cylinder function：It is oil-filled to suspension acting chamber one or suspension acting chamber two, push connecting seat to the right, to left movement,
And then realize suspension oil cylinder play lifting, damping effect.
2. steering suspension oil cylinder according to claim 1, it is characterised in that：Including cylinder bottom one, turn-around chamber one, piston one,
Position latch well one, piston three, locking seat, spiral shell in cylinder barrel one, rack, piston two, turn-around chamber two, guide sleeve one, cylinder barrel two, steering
Position latch well two, cylinder bottom two, gear, sealing ring two, cylinder bottom three, outer sleeve, guide sleeve in mother, piston four, cylinder barrel three, steering
3rd, cylinder barrel four, spline structure, suspension acting chamber one, piston rod one, logical wick pipe one, logical wick pipe two, guide sleeve two, piston
5th, sealing ring three, suspension acting chamber two, connecting seat；
Piston one, piston two, guide sleeve, piston three, piston four are successively set in cylinder barrel one, are sealed between guide sleeve and cylinder barrel
It is fixedly connected；Turn-around chamber one is formed between piston one and cylinder bottom one, turn-around chamber two is formed between piston two and guide sleeve；It is living
Position latch well one in steering is formed between plug three and guide sleeve, position latch well in steering is formed between piston four and cylinder bottom two
Two；Locking seat is provided between piston three and piston four；Rack both ends are fixedly connected respectively with piston one, piston two, piston rod
One end is fixedly connected with piston two, and the piston rod other end is provided with the nut to match with locking seat, guide sleeve one and piston three
It is arranged on the piston rod；Wheel and rack is meshed, and moving left and right band moving gear by rack rotates, and gear is solid with cylinder bottom three
It is fixed；
Outer sleeve one end is fixedly connected on cylinder bottom three, and one one end of piston rod is fixed on cylinder bottom three, and four one end of cylinder barrel is fixed on
On connecting seat, cylinder barrel four is set in outer sleeve, and piston rod one is arranged in cylinder barrel four, and the other end of cylinder barrel four passes through guide sleeve
Three are tightly connected with piston rod one, are provided with spline structure and guide sleeve two between outer sleeve and cylinder barrel four, piston rod one from
By being sealed between end setting piston five and cylinder barrel four so that formed between the free end of piston rod one, cylinder barrel four, connecting seat
Suspension acting chamber two forms the suspension acting chamber one of annular by piston five and guide sleeve three between piston rod one and cylinder barrel four,
Logical wick pipe one connects three hydraulic fluid port of cylinder bottom and suspension acting chamber two, leads to wick pipe two and connects three hydraulic fluid port of cylinder bottom and suspension acting chamber
One.
3. steering suspension oil cylinder according to claim 2, it is characterised in that：Sealing is provided between piston five and cylinder barrel four
Circle three is sealed.
4. steering suspension oil cylinder according to claim 1, it is characterised in that：Including cylinder bottom one, turn-around chamber one, piston one,
Position latch well one, piston three, locking seat, spiral shell in cylinder barrel one, rack, piston two, turn-around chamber two, guide sleeve one, cylinder barrel two, steering
Mother, piston four, cylinder barrel three, turn in position latch well two, cylinder bottom two, gear, sealing ring two, cylinder bottom three, suspension acting chamber one, outer
Sleeve, piston five, guide sleeve two, cylinder barrel four, logical wick pipe one, piston rod two, piston rod one, suspension acting chamber two, guide sleeve
3rd, spline structure, guide sleeve four, sealing element three, connecting seat；
Piston one, piston two, guide sleeve, piston three, piston four are successively set in cylinder barrel one, are sealed between guide sleeve and cylinder barrel
It is fixedly connected；Turn-around chamber one is formed between piston one and cylinder bottom one, turn-around chamber two is formed between piston two and guide sleeve；It is living
Position latch well one in steering is formed between plug three and guide sleeve, position latch well in steering is formed between piston four and cylinder bottom two
Two；Locking seat is provided between piston three and piston four；Rack both ends are fixedly connected respectively with piston one, piston two, piston rod
One end is fixedly connected with piston two, and the piston rod other end is provided with the nut to match with locking seat, guide sleeve one and piston three
It is arranged on the piston rod；Wheel and rack is meshed, and moving left and right band moving gear by rack rotates, and gear is solid with cylinder bottom three
It is fixed；
Outer sleeve one end is fixedly connected on cylinder bottom three, and one one end of piston rod is fixed on cylinder bottom three, cylinder barrel four, piston rod 21
End is fixed on connecting seat, and guide sleeve four is fixedly connected with the free end of piston rod one, the free end of piston five and piston rod two
It is fixedly connected；
Cylinder barrel four is set in outer sleeve, and piston rod one is arranged in cylinder barrel four, and piston rod two is arranged in piston rod one, piston
The free end of bar two is tightly connected by piston five and piston rod one, and the guide sleeve four of one free end of piston rod is set in piston rod
Outside two, the suspension acting chamber one of annular, outer sleeve are formed between piston rod one and piston rod two by piston five and guide sleeve four
Guide sleeve three between cylinder barrel four is set, spline structure and guide sleeve two are set between piston rod one and cylinder barrel four so that piston
Suspension acting chamber two is formed between the free end of bar two, piston rod one, cylinder bottom three, leads to wick pipe one and connects three hydraulic fluid port of cylinder bottom and outstanding
Frame acting chamber two opens up channel connection hydraulic fluid port and suspension acting chamber one in cylinder bottom three.
5. steering suspension oil cylinder according to claim 4, it is characterised in that：It is set between guide sleeve four and piston rod two close
Sealing three is sealed.
6. the steering suspension oil cylinder according to claim 2 or 4, it is characterised in that：Further include sealing element one, nut one and gear
Circle, is fixedly connected between the piston rod end and piston two by nut one and baffle ring；Piston one, piston three, is lived at piston two
Plug four between sealing element one and inner wall of cylinder respectively by sealing.
7. the steering suspension oil cylinder according to claim 2 or 4, it is characterised in that：Further include housing, bearing, end cap and close
Seal two, the gear are installed in the housing by bearing, and housing both ends are sealed by end cap and sealing ring two.
8. a kind of suspension steering system, it is characterised in that：Including turning to suspension oil according to claim 1-7 any one of them
Cylinder further includes wheel side assembly, vehicle frame, knuckle, semiaxis, main reducing gear；
It turns to the connection of suspension oil cylinder to be mounted on vehicle frame, knuckle one end is connect with turning to suspension oil cylinder, and the other end and wheel side are total
Into connection；Take turns side assembly, knuckle, the suspension system for turning to suspension oil cylinder, vehicle frame composition wheel, play chassis independently lift,
Attenuation by absorption effect of vibration；
Main reducing gear is connect with vehicle frame, semiaxis one end with wheel side assembly connect, the other end with and main reducing gear connect；Main reducing gear
Engine power is transferred to wheel side assembly by semiaxis to rotate, so as to which vehicle be driven to travel；
The rack-and-pinion oil cylinder rotation in suspension oil cylinder is turned to, the steering of knuckle is driven to realize the steering of vehicle bridge.
9. suspension steering system according to claim 8, it is characterised in that：The steering suspension oil cylinder by connecting seat or
Bolt is fixed on vehicle frame.
10. suspension steering system according to claim 8, it is characterised in that：Further include steering linkage, the steering linkage
Both ends respectively by knuckle arm be connected to turn to suspension oil cylinder on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711381933.XA CN108128350B (en) | 2017-12-20 | 2017-12-20 | Steering suspension oil cylinder and suspension steering system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711381933.XA CN108128350B (en) | 2017-12-20 | 2017-12-20 | Steering suspension oil cylinder and suspension steering system thereof |
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| Publication Number | Publication Date |
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| CN108128350A true CN108128350A (en) | 2018-06-08 |
| CN108128350B CN108128350B (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711381933.XA Active CN108128350B (en) | 2017-12-20 | 2017-12-20 | Steering suspension oil cylinder and suspension steering system thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110329031A (en) * | 2019-06-06 | 2019-10-15 | 中国北方车辆研究所 | A kind of rocker arm suspension that achievable big angle rotary is adjusted |
| CN112278116A (en) * | 2020-10-30 | 2021-01-29 | 北京航天发射技术研究所 | Electric drive vehicle and electric driving system applying single-sliding-column independent suspension |
| CN113103837A (en) * | 2021-05-20 | 2021-07-13 | 徐州重型机械有限公司 | Independent suspension system and engineering machinery |
| CN113236629A (en) * | 2021-05-20 | 2021-08-10 | 徐州重型机械有限公司 | Hydraulic cylinder and engineering machinery |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0918162A2 (en) * | 1997-11-20 | 1999-05-26 | Ivan Borghi | Hydromechanically actuated rotating unit |
| EP0945287A2 (en) * | 1998-03-27 | 1999-09-29 | Grove U.S. LLC | Shock absorbing leg with top steering attachement |
| CN103967865A (en) * | 2014-05-29 | 2014-08-06 | 徐州徐工液压件有限公司 | Hydraulic cylinder with position locking function |
| CN104191925A (en) * | 2014-09-05 | 2014-12-10 | 徐州重型机械有限公司 | Non-driven independent suspension axle and all-terrain crane |
| CN106379408A (en) * | 2016-11-30 | 2017-02-08 | 徐州重型机械有限公司 | Wheeled chassis and crane |
| CN107336741A (en) * | 2017-06-30 | 2017-11-10 | 南京云之璟机电科技有限公司 | A kind of suspension fork mechanism based on In-wheel motor driving |
-
2017
- 2017-12-20 CN CN201711381933.XA patent/CN108128350B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0918162A2 (en) * | 1997-11-20 | 1999-05-26 | Ivan Borghi | Hydromechanically actuated rotating unit |
| EP0945287A2 (en) * | 1998-03-27 | 1999-09-29 | Grove U.S. LLC | Shock absorbing leg with top steering attachement |
| CN103967865A (en) * | 2014-05-29 | 2014-08-06 | 徐州徐工液压件有限公司 | Hydraulic cylinder with position locking function |
| CN104191925A (en) * | 2014-09-05 | 2014-12-10 | 徐州重型机械有限公司 | Non-driven independent suspension axle and all-terrain crane |
| CN106379408A (en) * | 2016-11-30 | 2017-02-08 | 徐州重型机械有限公司 | Wheeled chassis and crane |
| CN107336741A (en) * | 2017-06-30 | 2017-11-10 | 南京云之璟机电科技有限公司 | A kind of suspension fork mechanism based on In-wheel motor driving |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110329031A (en) * | 2019-06-06 | 2019-10-15 | 中国北方车辆研究所 | A kind of rocker arm suspension that achievable big angle rotary is adjusted |
| CN112278116A (en) * | 2020-10-30 | 2021-01-29 | 北京航天发射技术研究所 | Electric drive vehicle and electric driving system applying single-sliding-column independent suspension |
| CN113103837A (en) * | 2021-05-20 | 2021-07-13 | 徐州重型机械有限公司 | Independent suspension system and engineering machinery |
| CN113236629A (en) * | 2021-05-20 | 2021-08-10 | 徐州重型机械有限公司 | Hydraulic cylinder and engineering machinery |
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|---|---|
| CN108128350B (en) | 2020-06-19 |
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Address after: 221004 No.68, Gaoxin Road, Xuzhou Economic and Technological Development Zone, Xuzhou City, Jiangsu Province Applicant after: Xuzhou Heavy Machinery Co.,Ltd. Address before: 221004 No. 165 Copper Mountain Road, Yunlong District, Jiangsu, Xuzhou Applicant before: Xuzhou Heavy Machinery Co.,Ltd. |
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Application publication date: 20180608 Assignee: XCMG XUZHOU XUGONG HYDRAULIC PARTS Co.,Ltd. Assignor: Xuzhou Heavy Machinery Co.,Ltd. Contract record no.: X2023980050642 Denomination of invention: A steering suspension cylinder and its suspension steering system Granted publication date: 20200619 License type: Common License Record date: 20231209 |
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